δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka
Syngenetic ice wedges have been investigated on Ayon Island. Their isotope composition and the geochemical characteristics of both ice wedges and enclosing sediments have been obtained; four ice-wedge stages have been distinguished. Paleo temperature reconstructions for Ayon Island and adjacent terr...
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2020
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ftdatacite:10.1594/pangaea.915112 2023-05-15T15:18:32+02:00 δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna 2020 application/zip https://dx.doi.org/10.1594/pangaea.915112 https://doi.pangaea.de/10.1594/PANGAEA.915112 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.3103/s0145875218010131 https://dx.doi.org/10.1002/ppp.416 https://dx.doi.org/10.1016/j.yqres.2006.06.007 https://dx.doi.org/10.7256/2453-8922.2016.1.21310 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ayon Island Chaun-Chukotka deuterium heavy oxygen Holocene ice wedge Late Pleistocene Stable isotope Collection of Datasets article Collection 2020 ftdatacite https://doi.org/10.1594/pangaea.915112 https://doi.org/10.3103/s0145875218010131 https://doi.org/10.1002/ppp.416 https://doi.org/10.1016/j.yqres.2006.06.007 https://doi.org/10.7256/2453-8922.2016.1.21310 2022-02-09T13:18:14Z Syngenetic ice wedges have been investigated on Ayon Island. Their isotope composition and the geochemical characteristics of both ice wedges and enclosing sediments have been obtained; four ice-wedge stages have been distinguished. Paleo temperature reconstructions for Ayon Island and adjacent territories of northern Chukotka have been obtained based of these results. Almost identical trends in the distribution of ice-wedge isotope characteristics in the Arctic islands and in the lower reaches of the Kolyma River were observed, as well as differences in the magnitude of isotope oscillations during the transition from the Late Pleistocene to the Holocene compared to ice wedges of the Lower Kolyma region. The sediments have been dated by the radiocarbon (14C) method (Kotov and Ryabchun, 1986). Winter mean (twint.mean) and January (tJ) air temperature values were calculated using equation: tJ = 1.5 δ18Opiw (±3 °C), twint.mean = δ18Opiw (±2 °C). by the technique of Yu. Vasil'chuk (1989, 199). Mean annual ground temperatures were calculated using reconstructions of mean summer temperature by the technique of A. Vasil'chuk [2007] and of mean winter temperature by the technique of Yu. Vasil'chuk (1989). Analysis of major ion chemistry of ice - titration methods (titrimetric methods) are based on determining the quantity of a reagent of known concentration that is required to react completely with the analyte. Isotopic analyses were performed at the Institute of Water Problems, RAS and at the Institute of Geology, the city of Tallinn. Oxygen isotope measurements of ice wedge were carried out in the isotope laboratory of the Institute of Geology of Estonia (Prof. R. Vaikmae) using a Finnigan Delta-E mass spectrometer. Analytical precision was ±0.4‰ and in the isotope laboratory of the Institute of Water Problems RAS (Dr. A.Yesikov) using a Finnigan MAT 250 mass spectrometer. Analytical precision was ±0.6‰. : Data was submitted and proofread by Yurij K Vasil'chuk and Lyubov Bludushkina at the faculty of Geography, department of Geochemistry of Landscapes and Geography of Soils, Lomonosov Moscow State University. Article in Journal/Newspaper Arctic Chukotka kolyma river DataCite Metadata Store (German National Library of Science and Technology) Arctic Ayon ENVELOPE(167.987,167.987,69.936,69.936) Chaun ENVELOPE(170.711,170.711,68.804,68.804) Kolyma ENVELOPE(161.000,161.000,69.500,69.500) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ayon Island Chaun-Chukotka deuterium heavy oxygen Holocene ice wedge Late Pleistocene Stable isotope |
spellingShingle |
Ayon Island Chaun-Chukotka deuterium heavy oxygen Holocene ice wedge Late Pleistocene Stable isotope Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
topic_facet |
Ayon Island Chaun-Chukotka deuterium heavy oxygen Holocene ice wedge Late Pleistocene Stable isotope |
description |
Syngenetic ice wedges have been investigated on Ayon Island. Their isotope composition and the geochemical characteristics of both ice wedges and enclosing sediments have been obtained; four ice-wedge stages have been distinguished. Paleo temperature reconstructions for Ayon Island and adjacent territories of northern Chukotka have been obtained based of these results. Almost identical trends in the distribution of ice-wedge isotope characteristics in the Arctic islands and in the lower reaches of the Kolyma River were observed, as well as differences in the magnitude of isotope oscillations during the transition from the Late Pleistocene to the Holocene compared to ice wedges of the Lower Kolyma region. The sediments have been dated by the radiocarbon (14C) method (Kotov and Ryabchun, 1986). Winter mean (twint.mean) and January (tJ) air temperature values were calculated using equation: tJ = 1.5 δ18Opiw (±3 °C), twint.mean = δ18Opiw (±2 °C). by the technique of Yu. Vasil'chuk (1989, 199). Mean annual ground temperatures were calculated using reconstructions of mean summer temperature by the technique of A. Vasil'chuk [2007] and of mean winter temperature by the technique of Yu. Vasil'chuk (1989). Analysis of major ion chemistry of ice - titration methods (titrimetric methods) are based on determining the quantity of a reagent of known concentration that is required to react completely with the analyte. Isotopic analyses were performed at the Institute of Water Problems, RAS and at the Institute of Geology, the city of Tallinn. Oxygen isotope measurements of ice wedge were carried out in the isotope laboratory of the Institute of Geology of Estonia (Prof. R. Vaikmae) using a Finnigan Delta-E mass spectrometer. Analytical precision was ±0.4‰ and in the isotope laboratory of the Institute of Water Problems RAS (Dr. A.Yesikov) using a Finnigan MAT 250 mass spectrometer. Analytical precision was ±0.6‰. : Data was submitted and proofread by Yurij K Vasil'chuk and Lyubov Bludushkina at the faculty of Geography, department of Geochemistry of Landscapes and Geography of Soils, Lomonosov Moscow State University. |
format |
Article in Journal/Newspaper |
author |
Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna |
author_facet |
Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna |
author_sort |
Vasil'chuk, Yurij K |
title |
δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
title_short |
δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
title_full |
δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
title_fullStr |
δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
title_full_unstemmed |
δ¹⁸O composition of ice wedges from Ayon Island and paleotemperature reconstructions of the Northern Chukotka |
title_sort |
δ¹⁸o composition of ice wedges from ayon island and paleotemperature reconstructions of the northern chukotka |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2020 |
url |
https://dx.doi.org/10.1594/pangaea.915112 https://doi.pangaea.de/10.1594/PANGAEA.915112 |
long_lat |
ENVELOPE(167.987,167.987,69.936,69.936) ENVELOPE(170.711,170.711,68.804,68.804) ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic Ayon Chaun Kolyma |
geographic_facet |
Arctic Ayon Chaun Kolyma |
genre |
Arctic Chukotka kolyma river |
genre_facet |
Arctic Chukotka kolyma river |
op_relation |
https://dx.doi.org/10.3103/s0145875218010131 https://dx.doi.org/10.1002/ppp.416 https://dx.doi.org/10.1016/j.yqres.2006.06.007 https://dx.doi.org/10.7256/2453-8922.2016.1.21310 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.915112 https://doi.org/10.3103/s0145875218010131 https://doi.org/10.1002/ppp.416 https://doi.org/10.1016/j.yqres.2006.06.007 https://doi.org/10.7256/2453-8922.2016.1.21310 |
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